Research Progress of Polyvinyl Alcohol (PVA) Based on Hydrogel Dressings / 中国医疗器械杂志

This review introduces a brief description on the featured properties of polyvinyl alcohol based on hydrogel dressings. During past ten years many new artificial polymeric dressings have been developed, which meet requirements of wound healing. This review mainly focuses on one representative of ideal polymeric wound dressing membranes, polyvinyl alcohol based hydrogel dressings. But as the hydrogels with single component have low mechanical strength, recent trends have offered composite hydrogel membranes to achieve the ideal wound dressing requirements.

The performance of the microbial barrier of needleless positive pressure closed connectors / 中国医疗器械杂志

<p><b>OBJECTIVE</b>Analyzing the performance of microbial barrier of needleless positive pressure closed connectors.</p><p><b>METHODS</b>Three kinds of brand needleless positive pressure closed connectors were chosen to do the access of microorganisms test.</p><p><b>RESULTS</b>Positive results were detected in the three experimental groups.</p><p><b>CONCLUSIONS</b>So far, lots of the connectors are not qualified strictly on the market, some improvement is required in the structure design and process.</p>